Shuttle-locking mechanism for looms



(No' Mode 1.)

H. GRAIOHEN. SHUTTLE LOOKING MECHANISM FOR LOOMS.

Patented Nov.

ll/Ill? 1 "I TW WWW/116111111 III/11 II/I/IIIIII'IIIIIII UNITED STATES PATENT OFFICE.

HERMAN GRAICIIEN, OF LAIVRENCE, MASSACHUSETTS.

SHUTTLE-LOCKING MECHANISM FOR LOOMS.

SPECIFICATION forming part of Letters Patent No. 462,701, dated November 10, 1891.

Application filed March 3, 1891. Serial No- 383,576- (No model.)

To aZZ whom it may concern:

Be it known that I, HERMAN GRAICHEN, of Lawrence, county of Essex, State of Massachusetts, have invented an Improvement in Shuttle-Locking Mechanisms for Looms, of which the following description, in connection with the accompanying drawings, is a specificatiomlike letters on the drawings representing like parts.

This invention in looms has for its object to provide means whereby those shuttles contained in a shifting shuttle-box, which shut-. tles are not directly at the level of the race of the lay in operative position will be locked, so that they cannot slip out of place and do injury.

In usual looms the binder of the shuttlebox is supposed to prevent the shuttle from longitudinal motion, except when impelled by the usual picker-stick; but in accordance with my invention I have provided each binder with a co-operating shuttle-locking device, which bears on or engages the shuttle-body or enters a groove therein.

Figure 1 represents a rear side view of a shifting shuttle-box and part of the lay end in which the said shuttle-boXes rise and fall in usual manner; Fig. 2, a section in the line on through the shuttle-box, which is supposed to be opposite the usual raceway ot' the lay; Fig. 3, a section in the lining Fig. 4 is a detail to the left of the line 50 Fig. 2; Fig. 5, a sectional viewof a shuttle to show the groove therein.

The lay A, shaped to receive the shiftingshuttle-box frame 13, having, as represented, four cells, the sh uttle-box rod B, and the binders C, are and may be of usual construction. Ordinarily each binder is acted upon by a flat spring to normally keep the binder pressed against the shuttle in the shuttle-box cell with which the binder co-operates. I have provided each binder with a hole or slot to, and upon the usual pin a. which serves as a pivot for the binder, I have mounted a shuttle-locking device, herein shown as a lever 17, having a finger Z), provided with a point Z2 to enter a narrow longitudinalgroove 2 in the side wall of the shuttle S, or to enter the wood of the shuttle, as shown in Fig. 3, at all times, except when the shuttle is directly at the level of the raceway of the lay or in operative posi tion to be shot through the shed, at which time the particular lever Z), co-operating with the binder of the sh uttle-cell containing the shuttle to be thrown, comes against the releasing device D, which acts to throw the lever b in against the action of the spring 0, withdrawing the locking device (see Fig. 2) from contact with the shuttle. The releasing device D is fixed by screw d to part of the. lay.

Prior to my invention I am not aware that the shuttle in a shuttle-box has ever been acted upon by a locking device adapted to engage the side of and look a shuttle in a shifting shuttle-box, thus supplementing the action of the usual binder, and hence this invention is not to be limited to the exact form of locking device shown, as the shape of the said locking device and the means for moving it into and outfrom engagement with the shuttle might be modified in various ways and yet be within the scope of myinvention.

The outer end of each lever b has a camshaped projection I) to contact with the re leasing device D.

1. A lay and a shifting shuttle-box provided with binders, combined with lockin g devices independent of said binders to engage and lock in its own proper cell each shuttle not in the shuttle-box cell opposite the race way of the lay, and a releasing device in the path of movement of and to co-operate with each locking device to release one shuttle at a time, as and for the purpose set forth.

2. A lay, its shifting shuttle-box, a series of binders, and a series of locking devices having points and pivoted as described, combined with a releasing device or stop against which a part of the said locking device contacts when the shuttle-box containing the shuttle next to be thrown is at the level of the raceway, substantially as described.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

HERMAN GRAICI-IEN.

Witnesses:

Moses H. AMES, CHAS. T. EMERSON. 

